US 12,083,828 B2
Pneumatic tire
Yousuke Sakamoto, Kanagawa (JP)
Assigned to The Yokohama Rubber Co., LTD., Tokyo (JP)
Appl. No. 17/256,883
Filed by The Yokohama Rubber Co., LTD., Tokyo (JP)
PCT Filed Jul. 1, 2019, PCT No. PCT/JP2019/026051
§ 371(c)(1), (2) Date Dec. 29, 2020,
PCT Pub. No. WO2020/009056, PCT Pub. Date Jan. 9, 2020.
Claims priority of application No. 2018-126072 (JP), filed on Jul. 2, 2018.
Prior Publication US 2021/0331527 A1, Oct. 28, 2021
Int. Cl. B60C 11/13 (2006.01); B60C 11/12 (2006.01); B60C 11/03 (2006.01)
CPC B60C 11/12 (2013.01) [B60C 11/13 (2013.01); B60C 2011/0353 (2013.01); B60C 2011/0355 (2013.01); B60C 2011/036 (2013.01); B60C 2011/1361 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A pneumatic tire, comprising:
a tread portion that extends in a tire circumferential direction and forms an annular shape;
a pair of sidewall portions disposed on both sides of the tread portion;
a pair of bead portions disposed on an inner side of the pair of sidewall portions in a tire radial direction; and
a pair of main grooves extending along the tire circumferential direction on both sides of a tire equator of the tread portion, each of three rows of land portions defined by the pair of main grooves being further defined into a plurality of blocks,
the pair of main grooves being configured so that a series of bent elements formed by connecting at least five linear groove portions via bend points are continuously and repeatedly arranged in the tire circumferential direction, and
the at least five linear groove portions included in each of the series of bent elements having three or more types of inclination angles with respect to the tire circumferential direction and having five or more types of lengths, wherein
the tread portion includes only two main grooves, the two main grooves forming the pair of main grooves.